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
81 + 10 = ______
92 − 10 = ______
58 + 10 = ______
41 − 10 = ______
59 + 10 = ______
18 + 20 = ______
7 × 10 = ______
5 × 10 = ______
56 + 10 = ______
57 + 10 = ______
40 − 10 = ______
6 × 10 = ______
77 + 20 = ______
32 + 10 = ______
9 × 10 = ______
78 + 10 = ______
52 − 10 = ______
2 × 10 = ______
52 + 20 = ______
66 − 10 = ______
