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
65 + 20 = ______
85 − 10 = ______
73 + 10 = ______
88 − 10 = ______
89 + 10 = ______
69 − 10 = ______
8 × 10 = ______
52 + 10 = ______
52 − 10 = ______
59 + 10 = ______
44 + 20 = ______
7 × 10 = ______
3 × 10 = ______
61 + 20 = ______
32 + 10 = ______
66 + 20 = ______
1 × 10 = ______
51 − 10 = ______
5 × 10 = ______
87 + 10 = ______
