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
45 − 10 = ______
1 × 10 = ______
88 − 10 = ______
46 + 20 = ______
3 × 10 = ______
89 + 10 = ______
6 × 10 = ______
8 × 10 = ______
57 + 20 = ______
69 + 10 = ______
65 + 10 = ______
32 + 10 = ______
76 + 10 = ______
86 − 10 = ______
92 − 10 = ______
86 + 20 = ______
13 + 10 = ______
52 − 10 = ______
64 − 10 = ______
32 − 10 = ______
