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
7 × 10 = ______
2 × 10 = ______
76 + 20 = ______
46 − 10 = ______
89 + 10 = ______
23 + 20 = ______
58 − 10 = ______
49 + 10 = ______
1 × 10 = ______
11 + 20 = ______
30 + 20 = ______
22 − 10 = ______
28 − 10 = ______
8 × 10 = ______
6 × 10 = ______
83 + 10 = ______
3 × 10 = ______
69 + 20 = ______
73 + 20 = ______
94 − 10 = ______
