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
78 + 20 = ______
97 − 10 = ______
58 + 10 = ______
58 + 20 = ______
88 + 10 = ______
11 + 10 = ______
9 × 10 = ______
8 × 10 = ______
46 + 20 = ______
37 − 10 = ______
1 × 10 = ______
34 − 10 = ______
11 + 20 = ______
62 − 10 = ______
19 + 10 = ______
59 + 10 = ______
7 × 10 = ______
70 − 10 = ______
42 − 10 = ______
65 − 10 = ______
