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 = ______
63 + 10 = ______
8 × 10 = ______
52 − 10 = ______
66 − 10 = ______
51 + 20 = ______
5 × 10 = ______
89 − 10 = ______
6 × 10 = ______
76 + 10 = ______
49 + 20 = ______
70 + 10 = ______
88 + 10 = ______
79 + 10 = ______
45 + 10 = ______
20 + 20 = ______
7 × 10 = ______
9 × 10 = ______
12 + 10 = ______
70 + 20 = ______
