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
89 + 10 = ______
57 − 10 = ______
9 × 10 = ______
54 + 10 = ______
70 + 20 = ______
11 + 10 = ______
53 − 10 = ______
7 × 10 = ______
1 × 10 = ______
67 + 20 = ______
59 − 10 = ______
4 × 10 = ______
85 + 10 = ______
18 + 20 = ______
93 − 10 = ______
17 + 10 = ______
28 + 10 = ______
2 × 10 = ______
83 + 20 = ______
69 − 10 = ______
