sixteen{#blank#}1{#/blank#}

seventeen{#blank#}2{#/blank#}

eighteen{#blank#}3{#/blank#}

nineteen{#blank#}4{#/blank#}

twenty{#blank#}5{#/blank#}

Lily: Look! I have some new pencils and new crayons.

Mike: Oh, how many new pencils do you have?

Lily: I have fifteen new pencils and twenty new crayons.

Mike: But I can see twelve new crayons only.

Lily: The others are in my bag, under the chair.

Mike: Oh, I see. Can I use your new crayons, please?

Lily: Sure, here you are.