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
44 + 20 = ______
52 + 10 = ______
35 − 10 = ______
69 − 10 = ______
76 + 10 = ______
6 × 10 = ______
61 − 10 = ______
96 − 10 = ______
66 + 10 = ______
51 − 10 = ______
89 + 10 = ______
18 + 10 = ______
14 + 20 = ______
79 + 20 = ______
4 × 10 = ______
8 × 10 = ______
31 + 20 = ______
9 × 10 = ______
46 + 20 = ______
1 × 10 = ______
