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
47 − 10 = ______
51 − 10 = ______
2 × 10 = ______
8 × 10 = ______
5 × 10 = ______
37 + 20 = ______
22 + 10 = ______
3 × 10 = ______
14 + 10 = ______
24 + 10 = ______
66 + 10 = ______
40 − 10 = ______
79 + 20 = ______
23 − 10 = ______
54 − 10 = ______
47 + 10 = ______
7 × 10 = ______
15 + 20 = ______
33 + 10 = ______
19 + 20 = ______
