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
2 × 10 = ______
76 − 10 = ______
9 × 10 = ______
57 + 20 = ______
3 × 10 = ______
8 × 10 = ______
5 × 10 = ______
35 − 10 = ______
54 + 10 = ______
31 + 10 = ______
43 + 10 = ______
33 − 10 = ______
38 − 10 = ______
4 × 10 = ______
56 + 20 = ______
18 + 20 = ______
31 + 20 = ______
22 + 10 = ______
97 − 10 = ______
39 + 10 = ______
