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 = ______
67 − 10 = ______
72 − 10 = ______
6 × 10 = ______
23 + 20 = ______
36 + 20 = ______
95 − 10 = ______
99 − 10 = ______
40 − 10 = ______
5 × 10 = ______
9 × 10 = ______
31 + 20 = ______
50 − 10 = ______
1 × 10 = ______
44 + 20 = ______
15 + 10 = ______
32 + 10 = ______
4 × 10 = ______
78 − 10 = ______
32 − 10 = ______
