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
96 − 10 = ______
8 × 10 = ______
33 + 20 = ______
66 + 20 = ______
69 − 10 = ______
69 + 20 = ______
9 × 10 = ______
20 + 10 = ______
70 + 20 = ______
71 + 20 = ______
79 − 10 = ______
29 − 10 = ______
72 + 20 = ______
32 − 10 = ______
3 × 10 = ______
87 − 10 = ______
6 × 10 = ______
11 + 10 = ______
26 + 20 = ______
77 − 10 = ______
