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
88 + 10 = ______
78 − 10 = ______
77 + 20 = ______
6 × 10 = ______
41 − 10 = ______
61 + 20 = ______
7 × 10 = ______
16 + 10 = ______
58 + 20 = ______
9 × 10 = ______
85 + 20 = ______
78 + 10 = ______
4 × 10 = ______
17 + 20 = ______
66 − 10 = ______
41 + 20 = ______
77 − 10 = ______
70 − 10 = ______
94 − 10 = ______
52 − 10 = ______
