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 = ______
52 + 10 = ______
7 × 10 = ______
83 + 10 = ______
20 + 20 = ______
89 + 20 = ______
37 − 10 = ______
22 − 10 = ______
40 + 10 = ______
69 − 10 = ______
47 + 10 = ______
69 + 10 = ______
15 + 10 = ______
33 + 20 = ______
32 − 10 = ______
4 × 10 = ______
85 + 20 = ______
70 − 10 = ______
76 + 20 = ______
46 + 10 = ______
