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
79 + 10 = ______
71 + 20 = ______
75 − 10 = ______
68 + 20 = ______
8 × 10 = ______
14 + 20 = ______
92 − 10 = ______
59 + 10 = ______
34 + 10 = ______
9 × 10 = ______
11 + 20 = ______
73 + 10 = ______
79 − 10 = ______
56 + 20 = ______
4 × 10 = ______
1 × 10 = ______
35 + 20 = ______
30 − 10 = ______
69 + 10 = ______
5 × 10 = ______
