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
3 × 10 = ______
36 + 20 = ______
85 − 10 = ______
66 + 20 = ______
1 × 10 = ______
57 − 10 = ______
8 × 10 = ______
72 − 10 = ______
76 + 10 = ______
66 − 10 = ______
79 + 10 = ______
57 + 20 = ______
76 + 20 = ______
13 + 20 = ______
9 × 10 = ______
4 × 10 = ______
7 × 10 = ______
2 × 10 = ______
55 + 20 = ______
6 × 10 = ______
