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
87 + 10 = ______
41 + 10 = ______
9 × 10 = ______
84 − 10 = ______
6 × 10 = ______
58 − 10 = ______
8 × 10 = ______
51 + 20 = ______
5 × 10 = ______
15 + 20 = ______
14 + 10 = ______
63 + 10 = ______
55 + 10 = ______
1 × 10 = ______
39 + 20 = ______
51 − 10 = ______
56 + 10 = ______
40 + 10 = ______
52 − 10 = ______
7 × 10 = ______
