Matemáticas mentales Worksheet
Recommended for 1er grado — 5to grado
Matemáticas mentales Worksheet
Name: ____________________Date: ____________
Instructions: Usar estrategias mentales como sumar diez, duplicar y compensar para calcular rápidamente.
20 problems
5 × 10 = ______
27 − 10 = ______
56 + 20 = ______
37 + 20 = ______
81 + 20 = ______
34 − 10 = ______
96 − 10 = ______
61 − 10 = ______
3 × 10 = ______
55 + 20 = ______
21 − 10 = ______
9 × 10 = ______
16 + 10 = ______
18 + 20 = ______
71 + 20 = ______
81 + 10 = ______
6 × 10 = ______
86 + 20 = ______
4 × 10 = ______
50 + 10 = ______
